Home / 1,043,406.40-1,565,109.60-806,918.80

Finding the Fourth Proportional to 1,043,406.40, 1,565,109.60 and 806,918.80

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Solution

The fourth proportional to 1,043,406.40, 1,565,109.60 and 806,918.80 is: 1,210,378.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,043,406.40 : 1,565,109.60 = 806,918.80 : x
  2. Step 2: Convert to fraction form
    1,043,406.40/1,565,109.60 = 806,918.80/x
  3. Step 3: Cross multiply
    1,043,406.40x = 1,565,109.60 × 806,918.80
  4. Step 4: Simplify right side
    1,043,406.40x = 1,262,916,360,300.48
  5. Step 5: Solve for x
    x = 1,262,916,360,300.48/1,043,406.40
  6. Step 6: Final answer
    x = 1,210,378.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.